Round electronic clock with compact structure

Abstract

According to the circular electronic clock with the compact structure, the front shell, the liquid crystal screen, the conductive strips, the circuit board and the middle frame are assembled and combined to form the electronic clock, and the liquid crystal screen is configured to be of a polygonal structure and is closer to a circle, so that the internal structure is more compact, and the visual area is increased; and the electric connection structure of the liquid crystal screen, the bus bar and the circuit board is fixed through the buckling connection of the middle frame and the front shell, so that locking and fastening connecting pieces such as screws are omitted, the assembly process is simplified, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electronic clock, especially a compact structure's circular electronic clock. BACKGROUND

[0002] The circular electronic clock becomes a practical timing tool in modern life with its simple and elegant circular appearance and multifunctional design. It not only displays time accurately, but also is equipped with multiple alarm clocks, countdown, timers and night light display functions to meet the diversified needs from morning reminders to cooking timing. The silent operation and energy-saving mode make it suitable for bedroom, living room or office, etc. The temperature display function of some models adds a thoughtful detail of environmental perception. Whether placed on the bedside to provide clear readings for getting up at night or hung in the kitchen to assist cooking timing, this electronic clock can blend into the space with its understated aesthetic design, while helping users manage time efficiently with silent companionship, balancing practicality and decoration, becoming an indispensable smart companion in fast-paced life.

[0003] On the one hand, users want the display screen to be large enough to clearly read time, temperature and other information at a distance, especially in open spaces such as the kitchen and living room, where visibility is crucial. On the other hand, with the compactness of living space, users tend to choose smaller electronic clocks to save desktop or wall space while maintaining aesthetics.

[0004] Since liquid crystal screens cannot be processed into a circular shape, existing circular electronic clocks generally use square liquid crystal screens, which have redundant internal structures, making the electronic clock large in size and small in screen area. Moreover, screws are usually used to fix the circuit board, and the circuit board and liquid crystal screen are connected through wiring, making assembly cumbersome. SUMMARY

[0005] Therefore, there is a need to provide a compact structure's circular electronic clock to solve the problem that existing circular electronic clocks generally use square liquid crystal screens, which have redundant internal structures, making the electronic clock large in size and small in screen area, and screws are usually used to fix the circuit board, and the circuit board and liquid crystal screen are connected through wiring, making assembly cumbersome.

[0006] To achieve the above purpose, the utility model provides a compact structure's circular electronic clock, which comprises a front shell, a liquid crystal screen, a conductive strip, a circuit board and a middle frame assembled in sequence.

[0007] The circuit board is electrically connected to the liquid crystal screen through the conductive strip, the shape of the liquid crystal screen is polygonal and has at least six sides, the middle frame and the front shell are respectively provided with buckling structures that cooperate with each other, the circuit board presses the conductive strip against the back of the liquid crystal screen through the buckling connection of the middle frame and the front shell, and the back of the circuit board is provided with a power supply module.

[0008] Further, the shape of the liquid crystal screen is hexagonal.

[0009] Further, the electric contacts on the circuit board for connecting the conductive strips are arranged on the upper and lower sides respectively.

[0010] Further, the buckle structures on the middle frame are arranged on the upper and lower sides respectively, and the two buckle structures adopt different buckle types.

[0011] Further, a rear cover is further included, which is detachably covered on the rear of the front shell.

[0012] Further, the middle frame is provided with a battery port.

[0013] Further, the inner side of the front shell is provided with a plurality of bending plates, and the plurality of corners of the liquid crystal screen are correspondingly clamped into the inner sides of the plurality of bending plates.

[0014] Further, the circuit board is provided with a plurality of positioning holes, and the inner side of the front shell is provided with a plurality of positioning columns correspondingly inserted into the plurality of positioning holes.

[0015] Further, the power supply module is a button battery seat.

[0016] Further, a plurality of elastic buffer blocks are further included, which are arranged between the liquid crystal screen and the circuit board.

[0017] Different from the prior art, the above technical solution assembles and combines the front shell, the liquid crystal screen, the conductive strips, the circuit board and the middle frame to form an electronic clock, configures the liquid crystal screen as a polygonal structure, which is more close to a circular shape, so that the internal structure is more compact, the visible area is increased, and the electric connection structure of the liquid crystal screen, the conductive strips and the circuit board is fixed through the buckle connection of the middle frame and the front shell, so that the connecting members such as screws for locking and fastening are avoided, the assembly process is simplified, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure perspective exploded view of the compact circular electronic clock according to the embodiment;

[0019] Figure 2 A structure perspective view of the compact circular electronic clock according to the embodiment;

[0020] Figure 3 A structure front view of the compact circular electronic clock according to the embodiment;

[0021] Figure 4 A structure side view of the compact circular electronic clock according to the embodiment;

[0022] Figure 5Structure rear view of the compact structure round electronic clock according to the specific embodiment;

[0023] Figure 6 Structure perspective exploded view of another angle of the compact structure round electronic clock according to the specific embodiment;

[0024] Figure 7 Structure perspective view of another angle of the front shell according to the specific embodiment;

[0025] Figure 8 Structure perspective view of another angle of the circuit board according to the specific embodiment.

[0026] Explanation of reference signs:

[0027] 10, front shell; 101, bent plate; 102, positioning column; 20, liquid crystal screen; 30, conductive strip; 40, circuit board; 401, electric contact; 402, positioning hole; 50, middle frame; 501, buckle structure; 60, button cell seat; 70, back cover; 80, elastic buffer block. Specific embodiment

[0028] In order to describe the technical content, structural features, achieved purposes and effects of the technical scheme in detail, the following will be described in combination with specific embodiments and the accompanying drawings.

[0029] In this article, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical scheme.

[0030] Unless otherwise defined, the meaning of the technical terms used in this article is the same as that generally understood by the person skilled in the art to which the present application belongs; the use of related terms in this article is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0031] In the description of the present application, the phrase "and / or" is used to describe the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally represents the logical relationship of "or" between the front and rear associated objects.

[0032] In the present application, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, primary or secondary, or order relationship between the entities or operations.

[0033] In the present application, the "include", "contain", "have" or other similar expressions used in the statements are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of additional elements in the process, method or product comprising the elements, so that the process, method or product comprising a series of elements can not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0034] As the same understanding as in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0035] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or position relationship is based on the orientation or position relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0036] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, or a detachable connection, or an integral setting; it can be a mechanical connection, or an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] Please refer toFigures 1 to 8 The embodiment provides a compact circular electronic clock, which comprises a front shell 10, a liquid crystal screen 20, a conductive strip 30, a circuit board 40 and a middle frame 50 which are sequentially assembled, the front shell 10 is a circular groove-shaped structure with a circular opening in the front surface, and the assembling process is as follows: first, the liquid crystal screen 20 is placed into the rear surface of the front shell 10 with the front surface facing outward, the front frame of the front shell 10 supports the front surface of the liquid crystal screen 20, and the middle part forms a visible area of the liquid crystal screen 20, then the conductive strip 30 and the circuit board 40 are sequentially assembled, and the middle frame 50 is buckled with the front shell 10, at this time, the middle frame 50 can continuously press the circuit board 40, so that the conductive strip 30 can be pressed on the back surface of the liquid crystal screen 20, and stable electrical connection is realized.

[0038] The front shell 10 and the middle frame 50 can be made of plastic or metal material, specifically, the front shell 10 can be made of ABS+PC mixed material, and the middle frame 50 can be made of POM polyoxymethylene resin injection molding, and the surface is provided with anti-skid lines of a certain thickness to enhance the assembly friction.

[0039] The liquid crystal screen 20 can be an LCD screen or an LED screen. The conductive strip 30 can be an anisotropic conductive adhesive strip (ACF), which is uniformly distributed with nickel-based conductive particles inside, and the conductive particles vertically conduct the touch points of the circuit board 40 and the screen ITO electrode through a hot pressing process, and the horizontal direction is prevented from signal crosstalk due to the blocking of insulating resin.

[0040] Preferably, the liquid crystal screen 20 adopts a hexagonal shape, especially a regular hexagon, in the circular electronic clock, the matching degree of the circumscribed circle of the regular hexagonal liquid crystal screen 20 and the circular shell is extremely high, the frame width can be reduced and the display area ratio can be improved, meanwhile, the six symmetrical edges can be uniformly distributed with buckle points, so that stress concentration can be avoided; the geometric center of the hexagon is highly consistent with the center of the dial, and the edge chamfer design not only reduces the invalid display area (such as edge shielding) to less than 5%, but also optimizes the circuit board 40 wiring through diagonal line layout, so that stable electrical connection and larger visual experience of visual range can be realized in a compact space.

[0041] The circuit board 40 is electrically connected with the liquid crystal screen 20 through the conductive strip 30, the liquid crystal screen 20 is in a polygonal shape and has at least six sides, the middle frame 50 and the front shell 10 are respectively provided with buckling structures 501 matched with each other, the buckling structures 501 can be provided as L-shaped hooks and guide grooves, a plurality of groups of L-shaped stainless steel hooks are arranged on the inner wall of the middle frame 50, a T-shaped guide groove with a certain depth is arranged at the corresponding position of the front shell 10, when assembled, the hooks are inserted along the guide groove and then rotated by a certain angle until the hook part engages with the limiting step in the groove, thereby completing the buckling connection, or, the elastic buckling piece and the annular groove can be used, the annular groove with a certain width is arranged on the outer edge of the front shell 10, and the corresponding nylon elastic buckling piece is distributed on the inner side of the middle frame 50, when the middle frame 50 is pressed, the buckling piece is deformed under pressure, and after reset, the buckling piece is buckled into the groove and generates a holding force, the reverse disengagement is prevented through the barb structure, and the buckling connection is completed. Through the buckling connection of the middle frame 50 and the front shell 10, the circuit board 40 is pressed against the back of the liquid crystal screen 20 through the conductive strip 30, the rear cover 70 is detachably covered on the back of the middle frame 50, and the back of the circuit board 40 is provided with a power supply module. The power supply module can adopt the following several kinds: dry battery compartment, the battery compartment is arranged on the back of the circuit board 40, the spring needle and the copper sheet contact are connected, and the compartment cover is buckled through magnetic attraction; USB power supply module, the Micro USB interface is welded on the edge of the circuit board 40, the rectangular opening is arranged on the side wall of the middle frame 50, and the exposed part of the interface is covered with a TPU waterproof rubber ring. Preferably, in order to make the overall structure more compact, the power supply module can adopt the button battery seat 60, and the positive and negative electrode contacts of the battery adopt gold-plated elastic sheets.

[0042] The present application is formed by assembling and combining the front shell 10, the liquid crystal screen 20, the conductive strip 30, the circuit board 40 and the middle frame 50 to form an electronic clock, the liquid crystal screen 20 is configured in a polygonal structure, which is more close to a circular shape, so that the internal structure is more compact, the visible area is increased, and the buckling connection of the middle frame 50 and the front shell 10 is used to fix the electrical connection structure of the liquid crystal screen 20, the conductive strip 30 and the circuit board 40, so that the connecting members such as screws for locking and fastening are omitted, the assembly process is simplified, and the production efficiency is improved.

[0043] In some embodiments, the electric contacts 401 on the circuit board 40 for connecting the conductive strips 30 are arranged on the upper and lower sides respectively. The design of symmetrically arranging the electric contacts 401 on the upper and lower sides of the circuit board 40 and connecting the liquid crystal screen 20 through the double conductive strips 30 forms a normal force balance system through the bilateral contacts, effectively disperses the assembly stress and thermal expansion deformation, avoids the screen warping or micro-crack problem caused by uneven single-sided contact pressure, and at the same time, the parallel conductive paths of the double conductive strips 30 can be redundant, maintaining the conduction stability through current shunting when vibrating or temperature fluctuating, and the symmetric layout of the upper and lower contacts is more matched with the thermal deformation characteristics of the liquid crystal screen 20, which inhibits the contact resistance drift through a synchronous compensation mechanism in an extreme temperature and humidity environment, significantly improving the mechanical reliability and long-term electrical performance of the overall structure.

[0044] In some embodiments, the buckle structures 501 on the middle frame 50 are arranged on the upper and lower sides respectively, and the two buckle structures 501 adopt different buckle types. The design of using different buckle types on the upper and lower sides of the middle frame 50 forms a foolproof identification feature through the asymmetric layout of the physical form, which provides clear misalignment feedback when the upper and lower cover plates are assembled due to mismatched buckle types, effectively avoiding reverse misassembly. At the same time, the two buckle structures 501 form a complementary mechanical support system when locked, the upper buckle focuses on vertical directional positioning constraint, and the lower buckle enhances the inhibition ability of horizontal displacement, which improves the overall rigidity of the assembly interface through bidirectional mechanical coupling, and can realize stress hierarchical dissipation when impacted by external force, ensuring the dynamic stability and long-term structural integrity of the component joint surface.

[0045] In some embodiments, a rear cover 70 is further included, which is detachably covered on the rear of the front shell 10, and further, the middle frame 50 is provided with a battery port. In this structure, the rear cover 70 can be detachably assembled with the front shell 10 through the composite connection mode of buckle and positioning pin, the buckle provides elastic locking force to ensure the planar fit in the closed state, and the positioning pin forms a secondary guide limit with the corresponding guide groove, so that only a specific unlocking area needs to be pressed to realize mechanism decoupling when the cover is opened. The battery port in the center of the middle frame 50 directly exposes the energy storage unit mounting area, so that the operator can complete the battery replacement without completely separating the middle frame 50 and the front shell 10, which maintains the integrity of the main structure of the device, and through the directional opening design, the maintenance action is limited to a specific functional module, effectively reducing the risk of damage to internal components caused by unnecessary disassembly.

[0046] In some embodiments, the inner side of the front shell 10 is provided with a plurality of bent plates 101, and the plurality of corners of the liquid crystal screen 20 correspondingly clamps into the inner side of the plurality of bent plates 101. The bent plate 101 forms a geometric constraint track matched with the plane edge of the liquid crystal screen 20 through the folding edge, and constructs a sliding guide limiting system in the X / Y axis direction. When the screen is assembled in place, the guide inclined surface in the inner side of each bent plate 101 forms a surface contact constraint with the side edge of the screen, and the transverse displacement trend is inhibited through the friction damping effect, while allowing a slight elastic adjustment in the Z axis direction to adapt to the thermal expansion and cold contraction deformation. The structure forms an asymmetric limiting network through the misaligned distribution of the guide surfaces, and can decompose the load to the adjacent support rib positions when subjected to a lateral impact, thereby avoiding structural failure caused by local overload. The directional limiting mechanism balances the dynamic stability and assembly tolerance while ensuring the positioning accuracy of the screen plane, and avoids assembly stress accumulation by releasing the degree of freedom in the vertical direction.

[0047] In some embodiments, the circuit board 40 is provided with a plurality of positioning holes 402, and the inner side of the front shell 10 is provided with a plurality of positioning columns 102 corresponding to the plurality of positioning holes 402. The distributed positioning columns 102 on the inner side of the front shell 10 and the positioning holes 402 on the edge of the circuit board 40 constitute a positioning system, so that the circuit board 40 is spatially aligned with the reference surface of the liquid crystal screen 20 before being subjected to a fastening force, thereby significantly reducing the dependence of the assembly process on the operation accuracy and improving the assembly efficiency.

[0048] In some embodiments, the elastic buffer blocks 80 are further included, and the elastic buffer blocks 80 are at least two and are arranged between the liquid crystal screen 20 and the circuit board 40. The at least two elastic buffer blocks 80 arranged between the liquid crystal screen 20 and the circuit board 40 form a distributed elastic support structure. The buffer blocks can be made of silicone or polyurethane materials, and provide flexible support in the vertical direction through the compression deformation characteristics, compensate for assembly tolerances and absorb vibration impact perpendicular to the liquid crystal screen 20 and the circuit board 40. The elastic buffer blocks 80 form a plurality of support points between the liquid crystal screen 20 and the circuit board 40, disperse the assembly stress applied by the middle frame 50 and the front shell 10 through the local deformation of the elastic contact surface, avoid warping deformation caused by stress concentration, and improve the stability of the internal structure and the impact resistance.

[0049] It should be noted that although the above embodiments have been described in the present text, the patent protection scope of the present utility model is not limited thereby. Therefore, based on the innovative concept of the present utility model, the changes and modifications of the embodiments described in the present text, or the equivalent structure or equivalent process transformation made by using the contents of the present utility model specification and drawings, directly or indirectly apply the above technical solutions to other related technical fields, are all included in the protection scope of the patent of the present utility model.

Claims

1. A compact circular electronic clock, characterized by: The front shell, the liquid crystal screen, the conductive strip, the circuit board and the middle frame are sequentially assembled; The circuit board is electrically connected with the liquid crystal screen through the conductive strip, the liquid crystal screen is polygonal and has at least six sides, the middle frame and the front shell are respectively provided with buckling structures matched with each other, the circuit board presses the conductive strip against the back of the liquid crystal screen through the buckling connection of the middle frame and the front shell, and the back of the circuit board is provided with a power supply module.

2. A compact circular electronic clock according to claim 1, characterized in that: The liquid crystal screen is hexagonal.

3. A compact circular electronic clock according to claim 1, characterized in that: The electric contacts on the circuit board for connecting the conductive strip are respectively arranged on the upper and lower sides.

4. A compact circular electronic clock according to claim 1, characterized in that: The buckling structures on the middle frame are respectively arranged on the upper and lower sides, and the two buckling structures adopt different buckling types.

5. A compact circular electronic clock according to claim 1, characterized in that: The rear cover is detachably combined with the rear of the front shell.

6. A compact circular electronic clock according to claim 4, characterized in that: The middle frame is provided with a battery port.

7. A compact circular electronic clock according to claim 1, characterized in that: The inner side of the front shell is provided with a plurality of bending plates, and the plurality of corners of the liquid crystal screen are respectively buckled into the inner sides of the plurality of bending plates.

8. A compact circular electronic clock according to claim 1, characterized in that: The circuit board is provided with a plurality of positioning holes, and the inner side of the front shell is provided with a plurality of positioning columns matched with the plurality of positioning holes.

9. A compact circular electronic clock according to claim 1, characterized in that: The power supply module is a button battery seat.

10. A compact circular electronic clock according to claim 1, characterized in that: The elastic buffer blocks are arranged between the liquid crystal screen and the circuit board.

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